JPS613973U

JPS613973U - Non-contact ignition device for internal combustion engine

Info

Publication number: JPS613973U
Application number: JP8719984U
Authority: JP
Inventors: 裕司中田; 雅夫岩田
Original assignee: 追浜工業株式会社
Priority date: 1984-06-12
Filing date: 1984-06-12
Publication date: 1986-01-11
Also published as: JPH0115902Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来の無接点点火装置の説明図、第２図は発電
コイルの電圧斡形図、第３図は本考案の無接点点火装置
の説明図、第４図は同じく発電コイルの電圧波形図、第
５図ａ，ｂ，ｃは回路各部の波形図および点火時期
特性図、第６図は無接点点火装置の他の実施例の説明図
である。１・・・ロータ、５Ａ，６，７・・・ポールピース、５
ａ・・・延長部、５ｂ・・・露出部、５ｃ・・・溝、１
０・・・発電コイル、１７・・・充電回路用コンデンサ
、１８・・・イグニッションコイル、１９・・・点火プ
ラグ、Ｃ・・・充電回路、Ｅ・・・点火制御回路、Ｆ・
・・遅角制御回路。Fig. 1 is an explanatory diagram of a conventional non-contact ignition device, Fig. 2 is a voltage square diagram of a generating coil, Fig. 3 is an explanatory diagram of a non-contact ignition device of the present invention, and Fig. 4 is also a voltage diagram of a generating coil. Waveform diagrams, FIGS. 5a, b, and c are waveform diagrams of various parts of the circuit and ignition timing characteristic diagrams, and FIG. 6 is an explanatory diagram of another embodiment of the non-contact ignition device. 1... Rotor, 5A, 6, 7... Pole piece, 5
a... Extension part, 5b... Exposed part, 5c... Groove, 1
0... Generator coil, 17... Capacitor for charging circuit, 18... Ignition coil, 19... Spark plug, C... Charging circuit, E... Ignition control circuit, F.
...Retard angle control circuit.

Claims

[Scope of utility model registration request]

It consists of a rotor having at least two or more adjacent pole pieces of different polarity, a U-shaped core arranged around the rotor, and a power generation coil wound around the legs of the U-shaped core. , a part of the pole piece that first faces the U-shaped core is extended in a comb-like manner in the direction of rotation to expose it to the outer periphery of the rotor, and the surface area of the exposed portion of the pole piece is set to the direction of rotation of the rotor. A magnet generator is constructed by gradually decreasing the size of the magnet generator, and a charging circuit is provided to charge the positive voltage induced in the generator coil, and the charge of the charging circuit is transferred to an ignition coil. Engine overload is prevented by a discharge circuit that discharges, an ignition control circuit that causes the discharge in the discharge circuit to occur at the set level of the negative voltage just before the positive voltage, and a discharge voltage of the charge and discharge circuit that has a large discharge time constant. A non-contact ignition device for an internal combustion engine, characterized in that the non-contact ignition device for an internal combustion engine is connected to a retard control circuit that retards the discharge of the discharge circuit in the rotation range.